fix test_pipes.py format

Author: Vizonex

tests/test_pipes.py

@@ -107,9 +107,7 @@ async def connect():
 
         os.close(wpipe)
         self.loop.run_until_complete(proto.done)
-        self.assertEqual(
-            ["INITIAL", "CONNECTED", "EOF", "CLOSED"], proto.state
-        )
+        self.assertEqual(["INITIAL", "CONNECTED", "EOF", "CLOSED"], proto.state)
         # extra info is available
         self.assertIsNotNone(proto.transport.get_extra_info("pipe"))
 
@@ -121,9 +119,7 @@ def test_read_pty_output(self):
         master_read_obj = io.open(master, "rb", 0)
 
         async def connect():
-            t, p = await self.loop.connect_read_pipe(
-                lambda: proto, master_read_obj
-            )
+            t, p = await self.loop.connect_read_pipe(lambda: proto, master_read_obj)
             self.assertIs(p, proto)
             self.assertIs(t, proto.transport)
             self.assertEqual(["INITIAL", "CONNECTED"], proto.state)
@@ -147,9 +143,7 @@ async def connect():
         proto.transport.close()
         self.loop.run_until_complete(proto.done)
 
-        self.assertEqual(
-            ["INITIAL", "CONNECTED", "EOF", "CLOSED"], proto.state
-        )
+        self.assertEqual(["INITIAL", "CONNECTED", "EOF", "CLOSED"], proto.state)
         # extra info is available
         self.assertIsNotNone(proto.transport.get_extra_info("pipe"))